

"""simple docstring"""




def       lowercase__						(       snake_case_   :int = 100    ):
	__UpperCAmelCase      		= n * (n + 1) * (2 * n + 1) / 6
	__UpperCAmelCase      		= (n * (n + 1) / 2) ** 2
	return int(square_of_sum - sum_of_squares    )


if __name__ == "__main__":
				print(f"""{solution() = }""")






'''simple docstring'''







import socket







def 						_A      ( ):






   '''simple docstring'''







   A__       =     socket.socket(socket.AF_INET      ,socket.SOCK_STREAM						)
   A__       =     socket.gethostname()
   A__       =     12312

   sock.connect((host, port)						)
   sock.send(B'Hello server!'						)

   with open('Received_file'      ,'wb'						) as out_file:
      print('File opened'						)
      print('Receiving data...'						)
      while True:
         A__       =     sock.recv(1024						)
         if not data:
            break
         out_file.write(UpperCAmelCase						)

   print('Successfully received the file'						)
   sock.close()
   print('Connection closed'						)


if __name__ == "__main__":
    main()


